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President Trump has repeated unfounded claims that scientists created Covid-19 in a lab. Rigorous scrutiny of the genetics of the virus reveals no evidence for such a claim.

And Brazil’s President Bolsonaro is at odds with his own health advisors – splitting public opinion and action over lockdown measures needed to control the virus.

We also look at why Covid -19 seems to be associated with so many different symptoms, from diarrheal infections to complicating kidney disease, to heart attacks

And some potentially good news from HIV research, a new target to stop that virus in its tracks, which might also be useful in the fight against other viruses.

(Image: President Trump with Brazilian President Bolsonaro. Credit: Getty Images)

Presenter: Roland Pease
Producer: Julian Siddle